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Polished brass mortise lockset with screwless lever and thumb turn

MAXTECH

MAXTECH 1033 Polished Brass Left Hand Mortise Door Lock

SKU CH-ZAS9-NJ62T

Heavy-duty mortise lockset with screwless lever plates, thru-bolted construction and ADA-compliant brass hardware for left-hand entry doors

  • FinishPolished Brass
  • TypeMortise Lockset
  • KeyingKeyed Different
  • Heavy-duty mortise lockset fits standard Marks 92 prep
  • Polished brass plates and levers resist wear and corrosion
  • Screwless thru-bolted trim installs cleanly without visible fasteners
  • Left-hand entry function with outside cylinder and inside thumb turn
  • Rekeyable 1-1/8" brass cylinder includes two keys

Polished Brass Mortise Lockset

The MAXTECH 1033 is a heavy-duty mortise lockset finished in polished brass. It is designed for left-hand doors requiring an entry function with a cylinder on the exterior and a thumb turn on the interior. The solid brass plates and levers provide a durable, ADA-compliant hardware solution for commercial or residential doors.

Sustained Operation Mechanics

Independent spring-loaded captivated spindles and lever support springs maintain consistent lever return and alignment through repeated daily cycles. The thru-bolted, screwless lever plate assemblies resist loosening under continuous torque, while the scissor latch and anti-friction latch combination reduces binding during high-traffic use. The solid brass 1-1/8 inch cylinder is built for easy rekeying without removing the lock body.

Mortise Prep and Compatibility Limits

This lockset fits the standard door preparation used for the Marks New Yorker 7NY92A series, requiring a 2-3/4 inch backset and a 1-1/4 by 8 inch front face plate cutout. It is not suitable for doors pre-drilled for cylindrical locksets or those with a different backset measurement. The left-hand orientation is fixed and cannot be reversed in the field for right-hand door swings.

Highlights

  • Heavy-duty mortise lockset fits standard Marks 92 prep
  • Polished brass plates and levers resist wear and corrosion
  • Screwless thru-bolted trim installs cleanly without visible fasteners
  • Left-hand entry function with outside cylinder and inside thumb turn
  • Rekeyable 1-1/8" brass cylinder includes two keys

Specifications

FinishPolished Brass
TypeMortise Lockset
KeyingKeyed Different

Questions about this item

How much heat or noise does the solid brass mortise lock generate when the door is used continuously all day?

The lock is a purely mechanical assembly with no motor or electronics, so it produces no heat and no audible noise beyond the normal click of the latch and deadbolt during operation.

What door preparation must already exist for this left-hand mortise lockset to install correctly?

The door must be pre-cut for a 2-3/4" backset mortise pocket with a 1-1/4" x 8" front face plate and through-bolt holes matching the Marks New Yorker 7NY92A pattern.

Will the 1-1/8" solid brass cylinder work with the existing key system in an older Marks New Yorker 7NY92A installation?

The cylinder is supplied keyed different with two keys; it can be rekeyed by a locksmith to match an existing Marks New Yorker 7NY92A keyway, but it does not arrive keyed alike.

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